You look at a slide under the microscope & the tissue has a single layer of cells next to an open surface. The indicated cells are roughly as tall as they are wide. How would you identify these cells?

Of the following tissue types, which is likely to be the thinnest overall? 

You look at a slide under the microscope & the tissue has a double layer of cells next to an open surface. The indicated cells are tall and narrow. How would you identify these cells? 

Each of the following statements is false. Correct each to make a true statement.

Synoviocytes are the secretory cells of mucosae.

Each of the following statements is false. Correct each to make a true statement.

Serous membranes line all hollow organs that open to the outside of the body.

Epithelial cells of the kidneys have pumps that drive the transcellular transport of sodium ions.

Is this epithelium likely to be simple or stratified? Why?